NEET BIOLOGY

STRUCTURAL ORGANISTION OF PLANTS AND ANIMALS

ANATOMY OF FLOWERING PLANTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The sticky tip of the pistil
A
Stigma
B
Stamen
C
Ovary
D
Ovule
Explanation: 

Detailed explanation-1: -The stigma is the sticky surface at the top of the pistil; it traps and holds the pollen. The style is the tube-like structure that supports the stigma. The style leads down to the ovary which contains the ovules. During the process of pollination, pollen moves from the male parts to the female parts.

Detailed explanation-2: -The top of the pistil is called the stigma, which is a sticky surface receptive to pollen.

Detailed explanation-3: -Stigma: The part of the pistil where pollen germinates. Ovary: The enlarged basal portion of the pistil where ovules are produced.

Detailed explanation-4: -Sticky surface of stigma helps in the exudation of complex substances that facilitates easy trapping of the pollen grain to prepare the plant for the process of fertilization. So, basically they are sticky to hold the pollen grain strongly.

Detailed explanation-5: -Anemophilous: Anemophilous pollination is a form of pollination where pollen grains are distributed via wind. In all wind-pollinated flowers, the mature stigma is found rough and sticky.

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